How to get a calculator to add up 2 × 4 + 2 × 4 ?

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I assume you wish to calculate 0.34 x 12 + 0.56 x 20

If you type this into a calculator, it will observe order of operations

i.e. (0.34 x 12) + (0.56 x 20)

so, 4.08 + 11.2 => 15.28

If you press the equals sign after each calculation you will get:

[(0.34 x 12) + 0.56] x 20

i.e. [4.08 + 0.56] x 20

so, 4.64 x 20 = 92.8

Hence, type the original expression into the machine and don't press the equals sign until the end

i.e. type this: 0.34 x 12 + 0.56 x 20 =

Note: If you use brackets you will get the same answer

i.e. (0.34 x 12) + (0.56 x 20) =

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